Tags |
|
|
Links |
|
|
Hub You - Seven Steps To Selecting The Right Air Cylinder
In the competitive manufacturing world, new, “innovative” products are constantly being introduced that are designed to save users enormous amounts of time and effort. And manufacturers of consumer goods are not the only industry trying to win the title of “Most Innovative.” Even business-to-business organizations, like the vendors who supply materials to manufacturers, have entered the game with products that aim to help manufacturers realize significant savings.The packaging industry has also put its hat in the innovation ring, and with great success. For example, a relatively recent innovation, corrugated plastic, has taken the packaging industry by storm, and manufacturers are just now starting to realize the product’s benefits. Plastic corrugated is a durable material designed to replace the conventional paper, or cardboard, c
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod di
A number of welfare and development programs can be organized with the help of non-profit fundraising events. Fundraising activities are normally undertaken by school fundraisers, college fundraisers, and church fundraisers, or by the youths for various activities.The purpose of fundraisers varies depending on an organization's interests. This includes collecting funds for poor children, daycare centers, and hospitals. When raising funds, the process needs to be monitored efficiently to eliminate chances of money laundering or misappropriation. This establishes a fundraising organization as a non-profit organization.Fundraising activities are quite a challenging job and require a great amount of planning on part of the fundraisers. In many cases it is a feasible option to form a committee and discuss the prospects in a plann
How much force do you need to move the object you wish to move?
You'll need to know the weight of the object. Consider what the object being moved is sliding and know that this friction is adding to the load.
Oversize the required force of the cylinder by 25% to take into account friction of the rod and piston seals within the air cylinder itself, and also allowing a safety margin as it relates to the expected load the cylinder will see.
Know your available air pressure (example: 90 PSI) and multiply that times the surface area of the piston inside the cylinder to get the theoretical output force of the cylinder.
If you multiply 3.14 x the radius - in inches -squared this equals the surface area of the piston in square inches.
Since cylinders only come in certain bore sizes, default to the standard cylinder bore that's the next size up if none are exactly the bore diameter calculated. Note that the size of the outside of the cylinder on some types has no real bearing on what the piston diameter inside the cylinder is.
How far do you wish to move the object?
If you wish to move the object five inches, it's logical to think that the cylinder piston / rod travel needs to be five inches. It could be that simple. It might not be. Take into account the size of the object that's to be moved to be sure that the object itself doesn't impact on the cylinder rod cap on retract.
You may wish to consider a cylinder with a longer stroke than required so that the piston of the cylinder can be stopped inside the barrel by having the object itself stop the movement. This stops the piston from "bottoming out" on either cap of the cylinder itself. Depending on the cycle speed, this may increase cylinder life.
Take into account how you are connecting your load to the cylinder rod. If using a clevis of some sort, take that dimension into account. Regardless of what is attached to the end of the rod, the rod itself can only move the distance that the piston inside the cylinder can move. That's all the stroke distance you have to work with.
How will you attach your object to the cylinder rod?
Careful, if you screw the object onto the rod thread directly. Make sure that the "load" and the rod are aligned.
A rod clevis is a "sloppy" connector that screws onto the end of the rod thread. Bolt the other half to your object, and the two halves are connected in the center via a cotter pin of sorts.
This "sloppy" type of connector forgives some misalignment between the rod travel and the object movement for if the object is too far off the axis of the rod, you will very quickly encounter problems with the air cylinder.
There are alignment couplers commercially available that will further absorb misalignment between load and rod. For extreme misalignment cases, the load can be installed on rods external to the cylinder, removing almost all side-load from the rod itself.
Note that there are standards in rod thread size which change depending on the bore size of the cylinder.
Further, the rods themselves can be modified to reduce the size of the thread, to change the type of thread, to make the rod end a female thread, or to replace the standard rod thread with a stud that can, if the stud breaks, be removed and replaced at minimal cost to parts and downtime.
How will you attach the cylinder to your machine?
Depending on the type and size of cylinder there are many options of unique and standard mounts.
Most cylinders come with integral mounting of some sort, whether it's a rod-cap thread, a rear-cap thread, a rear tang for a clevis mount, threaded holes into which bolts can be turned, front or rear flanges, trunnion mounts...and so on. It depends on the type of cylinder.
Remember, if the load that's being moved is not aligned with the rod travel, you will have problems. Therefore, the type and location of load will help determine the type of cylinder mount too.
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod dia
Electrical Safety Rogue Traders.There are many companies out there who do not carry out the testing correctly. They do not check the plugs or fuse ratings for appliances. All standard plug tops should be checked to ensure they are wired correctly, the terminals are secure, the fuse rating is correct and the general condition is ok. On moulded plugs the fuse rating should always be checked. On numerous occasions we have been called out to re-test another so called specialists work. When selecting a company to carry out works look for the following:1/ Are all engineers City&Guilds 2377 qualified.2/ Are the company accredited by an external organization for Portable Appliance Testing.3/ Can the company provide full method and risk assessments.4/ Is the equipment calibrated on at least an annual basis. (They
How far do you wish to move the object?
If you wish to move the object five inches, it's logical to think that the cylinder piston / rod travel needs to be five inches. It could be that simple. It might not be. Take into account the size of the object that's to be moved to be sure that the object itself doesn't impact on the cylinder rod cap on retract.
You may wish to consider a cylinder with a longer stroke than required so that the piston of the cylinder can be stopped inside the barrel by having the object itself stop the movement. This stops the piston from "bottoming out" on either cap of the cylinder itself. Depending on the cycle speed, this may increase cylinder life.
Take into account how you are connecting your load to the cylinder rod. If using a clevis of some sort, take that dimension into account. Regardless of what is attached to the end of the rod, the rod itself can only move the distance that the piston inside the cylinder can move. That's all the stroke distance you have to work with.
How will you attach your object to the cylinder rod?
Careful, if you screw the object onto the rod thread directly. Make sure that the "load" and the rod are aligned.
A rod clevis is a "sloppy" connector that screws onto the end of the rod thread. Bolt the other half to your object, and the two halves are connected in the center via a cotter pin of sorts.
This "sloppy" type of connector forgives some misalignment between the rod travel and the object movement for if the object is too far off the axis of the rod, you will very quickly encounter problems with the air cylinder.
There are alignment couplers commercially available that will further absorb misalignment between load and rod. For extreme misalignment cases, the load can be installed on rods external to the cylinder, removing almost all side-load from the rod itself.
Note that there are standards in rod thread size which change depending on the bore size of the cylinder.
Further, the rods themselves can be modified to reduce the size of the thread, to change the type of thread, to make the rod end a female thread, or to replace the standard rod thread with a stud that can, if the stud breaks, be removed and replaced at minimal cost to parts and downtime.
How will you attach the cylinder to your machine?
Depending on the type and size of cylinder there are many options of unique and standard mounts.
Most cylinders come with integral mounting of some sort, whether it's a rod-cap thread, a rear-cap thread, a rear tang for a clevis mount, threaded holes into which bolts can be turned, front or rear flanges, trunnion mounts...and so on. It depends on the type of cylinder.
Remember, if the load that's being moved is not aligned with the rod travel, you will have problems. Therefore, the type and location of load will help determine the type of cylinder mount too.
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod di
Hiring the expertise of a vested business broker is a good strategy, especially when doing business. If you are thinking of buying or selling your business, the foremost thought on your mind is, of course, how you will be able to optimize your sale or purchase. Getting the services of a reliable and knowledgeable vested business broker can make a huge difference.Vested business brokers act as the middlemen between buyers and sellers. They may have ready resources, such as a long list of clientele who are ready to make purchases or people who are itching to sell businesses or properties. Vested business brokers may also be in contact with a wider network that, in turn, can put you in touch with more possible buyers and sellers.Aside from these perks, the services of vested business brokers usually include some form of promoti
How will you attach your object to the cylinder rod?
Careful, if you screw the object onto the rod thread directly. Make sure that the "load" and the rod are aligned.
A rod clevis is a "sloppy" connector that screws onto the end of the rod thread. Bolt the other half to your object, and the two halves are connected in the center via a cotter pin of sorts.
This "sloppy" type of connector forgives some misalignment between the rod travel and the object movement for if the object is too far off the axis of the rod, you will very quickly encounter problems with the air cylinder.
There are alignment couplers commercially available that will further absorb misalignment between load and rod. For extreme misalignment cases, the load can be installed on rods external to the cylinder, removing almost all side-load from the rod itself.
Note that there are standards in rod thread size which change depending on the bore size of the cylinder.
Further, the rods themselves can be modified to reduce the size of the thread, to change the type of thread, to make the rod end a female thread, or to replace the standard rod thread with a stud that can, if the stud breaks, be removed and replaced at minimal cost to parts and downtime.
How will you attach the cylinder to your machine?
Depending on the type and size of cylinder there are many options of unique and standard mounts.
Most cylinders come with integral mounting of some sort, whether it's a rod-cap thread, a rear-cap thread, a rear tang for a clevis mount, threaded holes into which bolts can be turned, front or rear flanges, trunnion mounts...and so on. It depends on the type of cylinder.
Remember, if the load that's being moved is not aligned with the rod travel, you will have problems. Therefore, the type and location of load will help determine the type of cylinder mount too.
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod di
Recent articles suggest that many Americans work overtime hours for free. Especially with salaried jobs that are based on hourly wages for a 40 hour week, most hard working career minded individuals are willing to stay long past their 8 hour work day. They don’t want to feel worthless. But, they average nearly an extra full day per week.If they were to leave exactly when their eight hours were up, they think their boss is looking and will consider them slackers for leaving right on time. What a mentality to have! If you get paid for 8 hours a day, you should put your nose to the grindstone and get your work finished so that you can leave on time. That shouldn’t be considered slacking at all.But, most hard working career minded individuals are always thinking about job security and promotion. They think that if they gi
Note that there are standards in rod thread size which change depending on the bore size of the cylinder.
Further, the rods themselves can be modified to reduce the size of the thread, to change the type of thread, to make the rod end a female thread, or to replace the standard rod thread with a stud that can, if the stud breaks, be removed and replaced at minimal cost to parts and downtime.
How will you attach the cylinder to your machine?
Depending on the type and size of cylinder there are many options of unique and standard mounts.
Most cylinders come with integral mounting of some sort, whether it's a rod-cap thread, a rear-cap thread, a rear tang for a clevis mount, threaded holes into which bolts can be turned, front or rear flanges, trunnion mounts...and so on. It depends on the type of cylinder.
Remember, if the load that's being moved is not aligned with the rod travel, you will have problems. Therefore, the type and location of load will help determine the type of cylinder mount too.
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod di
In today’s online world, if we do not show up in the search engines when some one searches for our name, then we don’t exist.There are many strategies we can use to ensure that we are “virtually visible” and one of the most effective and low cost strategies for building your personal brand online is the authoring of your own business blog.But what if you do not have a business blog yourself? How can you use business blogging as a strategy to build your personal brand online?Well, have you noticed that most business blogs invite comments? The reason for this is that the business blogger who is the author of that blog are looking to build a community online and encourage dialogue and conversation amongst their readers.Commenting on someone’s business blog, expressing your expertise and personal brand can attract
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod diameter and rod threads, and the port sizes.
NFPA cylinders are imperial dimensions and imperial threads, ISO cylinders are metric dimensions and threads.
You need to consider the conditions into which the cylinder will be installed to determine if you need specialty materials in their construction. Also, specialty seals may be required in corrosive, low or high heat environments.
Cushions?
As referred to earlier, if you can avoid stopping the cylinder by having the piston "bottom out" inside the barrel, good. This will increase cylinder life. If this isn't practical, your cylinder caps can usually have cushion vents installed which, when adjusted, trap and slow the exhaust of a small amount of air from inside the cylinder as the piston reaches end of stroke. This provides a cushion to lessen the impact of the piston to the end cap.
Where is it?
If the application requires knowledge of load position, proximity sensing devices can usually be added to the barrel of the cylinder. They will "make" when a magnet on the piston inside the cylinder passes them. Since the distance from the magnet to end-of-rod is known, this will locate the load.
There are a variety of position sensing options for cylinders including reed switches, hall effect switches, linear potentiometers, or you can elect to sense the position of the load itself by using a barrel proximity switch mounted so that the switch "makes" as the load itself arrives.
If you need position sensing, make sure the cylinder you choose has that capability both in terms of magnets on the piston, and external mounts for the switch itself.
And there you have it - six steps to finding the right cylinder. Good luck in your hunt.
HTTP = HTML link (for blogs, profiles,phorums):
<a href="http://www.iadvice.info/article/3261/iadvice-Seven-Steps-To-Selecting-The-Right-Air-Cylinder.html">Seven Steps To Selecting The Right Air Cylinder</a>
BB link (for phorums):
[url=http://www.iadvice.info/article/3261/iadvice-Seven-Steps-To-Selecting-The-Right-Air-Cylinder.html]Seven Steps To Selecting The Right Air Cylinder[/url]
Related Articles:
Sole Proprietorship, Partnership, or Corporation?
What It takes to Succeed In Business in the 21st Century
Bookmark it:
|